﻿body {
  padding-top: 64px;
}
.header {
  background-color: #000;
  line-height: 64px;
  height: 64px;
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  -webkit-transition: all 1s;
  -moz-transition: all 1s;
  -ms-transition: all 1s;
  -o-transition: all 1s;
  transition: all 1s;
  z-index: 4;
}
.header.active,
.header.active .submenu {
  background-color: rgba(0, 0, 0, 0.85);
}
.header .content {
  width: 1200px;
  margin: 0 auto;
}
.header .logo {
  vertical-align: middle;
  float: left;
  width: 250px;
}
.header .active {
  color: #dda960;
  position: relative;
}
.header .active span {
  width: 100%;
}
.header .nav {
  margin-left: 435px;
  line-height: 64px;
}
.header .nav .current:after {
  content: ' ';
  border-bottom: 6px solid #353535;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  position: absolute;
  bottom: 0;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
}
.header .nav a:first-child:hover:after {
  content: none;
}
.header .nav a {
  color: #aaa;
  margin-right: 10px;
  padding: 0 16px;
  position: relative;
  display: inline-block;
}
.header .nav a span {
  position: absolute;
  left: 0;
  width: 0;
  bottom: 14px;
  height: 1px;
  background-color: #dda960;
  -webkit-transition: width 0.5s;
  -moz-transition: width 0.5s;
  -o-transition: width 0.5s;
  -ms-transition: width 0.5s;
  transition: width 0.5s;
}
.header .nav .active {
  color: #dda960;
}
.header .nav .active span {
  width: 100%;
}
.header .btn-join {
  border: 1px solid #fff;
  width: 130px;
  height: 36px;
  line-height: 36px;
  display: inline-block;
  padding: 0;
  color: #fff !important;
  float: right;
  margin-top: 13px;
}
.header .btn-join:hover {
  border-color: #dda960;
  color: #dda960 !important;
}
.header .btn-join:hover:after {
  content: none;
}
.submenu {
  position: absolute;
  top: 64px;
  left: 0;
  width: 100%;
  line-height: 64px;
  text-align: center;
  border-top: 1px solid #353535;
  background-color: #000;
  z-index: 1;
  min-width: 1200px;
}
.submenu a:hover {
  color: #dda960 !important;
}
@media screen and (min-width: 1920px) {
  .header .nav {
    margin-left: 392px;
  }
  .header .nav .link {
    margin-right: 30px;
  }
}

@media (max-width: 1700px) {
  .header .nav {
    margin-left: 335px;
  }
}
